Delayed Blast Fireball spell icon: a fiery bomb with a lit fuse
Icon by Lorc, CC BY 3.0

Delayed Blast Fireball 5e spell

7th-level evocation (concentration) · 2024 version below

Casting time
1 action
Range
150 feet
Components
V, S, M (A tiny ball of bat guano and sulfur)
Duration
Concentration, Up to 1 minute
School
Evocation
Level
7
Saving throw
Dexterity
Damage type
Fire

A beam of yellow light flashes from your pointing finger, then condenses to linger at a chosen point within range as a glowing bead for the duration. When the spell ends, either because your concentration is broken or because you decide to end it, the bead blossoms with a low roar into an explosion of flame that spreads around corners. Each creature in a 20-foot-radius sphere centered on that point must make a Dexterity saving throw. A creature takes fire damage equal to the total accumulated damage on a failed save, or half as much damage on a successful one.

The spell's base damage is 12d6. If at the end of your turn the bead has not yet detonated, the damage increases by 1d6.

If the glowing bead is touched before the interval has expired, the creature touching it must make a Dexterity saving throw. On a failed save, the spell ends immediately, causing the bead to erupt in flame. On a successful save, the creature can throw the bead up to 40 feet. When it strikes a creature or a solid object, the spell ends, and the bead explodes.

The fire damages objects in the area and ignites flammable objects that aren't being worn or carried.

At higher levels

When you cast this spell using a spell slot of 8th level or higher, the base damage increases by 1d6 for each slot level above 7th.

Delayed Blast Fireball damage by spell slot level

Spell slot levelDamageAverage
7th12d6 fire42
8th13d6 fire45.5
9th14d6 fire49

Averages are the dice’s expected total. A target that succeeds on its Dexterity save takes half. Roll any row in the dice roller.

Classes that can cast Delayed Blast Fireball

ClassFirst availableSpellcasting ability
Sorcerer spells13th character levelCharisma
Wizard spells13th character levelIntelligence

Delayed Blast Fireball in the 2024 rules

The 2024 Player’s Handbook revised many spells, and the SRD 5.2 carries the new text. What changed from the 2014 version above:

Same level, casting time, range, components, duration and dice; the text is reworded for the 2024 rules glossary.

Casting time
Action
Range
150 feet
Components
V, S, M (a ball of bat guano and sulfur)
Duration
Concentration, up to 1 minute
School
Evocation
Level
7
Classes
Sorcerer, Wizard
Tags
concentration

A beam of yellow light flashes from you, then condenses at a chosen point within range as a glowing bead for the duration. When the spell ends, the bead explodes, and each creature in a 20-foot-radius Sphere centered on that point makes a Dexterity saving throw. A creature takes Fire damage equal to the total accumulated damage on a failed save or half as much damage on a successful one.

The spell's base damage is 12d6, and the damage increases by 1d6 whenever your turn ends and the spell hasn't ended.

If a creature touches the glowing bead before the spell ends, that creature makes a Dexterity saving throw. On a failed save, the spell ends, causing the bead to explode. On a successful save, the creature can throw the bead up to 40 feet. If the thrown bead enters a creature's space or collides with a solid object, the spell ends, and the bead explodes.

When the bead explodes, flammable objects in the explosion that aren't being worn or carried start burning.

Using a Higher-Level Spell Slot. The base damage increases by 1d6 for each spell slot level above 7.

2024 version from the SRD 5.2. Most tables settle on one edition, so check which one yours uses.

Other 7th-level evocation spells

Other fire spells

Browse: all 7th-level spells · evocation spells · fire damage spells · concentration spells